Nepean Bay Weather Forecast

    • 7
    • 19

    Clear

    • 6
    • 18

    Sunny

    • 5
    • 18

    Mostly sunny

    • 8
    • 20

    Showers

    • 7
    • 16

    Possible shower

    • 9
    • 18

    Shower or two

    • 8
    • 19

    Shower or two

Today 29 Aug Kangaroo Island

Mostly clear. Light winds.

Investigator Strait Coastal Waters

Wind
Southeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre.
Weather
Clear.
Weather Situation
A high pressure system south of SA continues extending a ridge across the state, as it moves slowly east over the weekend, to be centred over Victoria by Monday. A cold front is then forecast to move across the state on Tuesday, as another ridge and high quickly push in behind the front on Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

August Temperature

Kingscote Airport (7km)

  • Lowest 1 August, 2026

    -0.1 °C

  • Average August

    11.6 °C

  • Highest 27 August, 2026

    18.8 °C

Climate (2021–2026)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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